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Finding the Fourth Proportional to 489,158.60, 733,733.58 and 156,734.60

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Solution

The fourth proportional to 489,158.60, 733,733.58 and 156,734.60 is: 235,100.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,158.60 : 733,733.58 = 156,734.60 : x
  2. Step 2: Convert to fraction form
    489,158.60/733,733.58 = 156,734.60/x
  3. Step 3: Cross multiply
    489,158.60x = 733,733.58 × 156,734.60
  4. Step 4: Simplify right side
    489,158.60x = 115,001,439,167.87
  5. Step 5: Solve for x
    x = 115,001,439,167.87/489,158.60
  6. Step 6: Final answer
    x = 235,100.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.